Marshmallow; Althaea officinalis. Handcoloured copperplate engraving from a botanical illustration by James Sowerby from William Woodville and Sir William Jackson Hooker's 鈥楳edical Botany;' John Bohn; London; 1832. The tireless Sowerby (1757-1822) drew over 2; 500 plants for Smith's mammoth 鈥楨nglish Botany' (1790-1814) and 440 mushrooms for 鈥楥oloured Figures of English Fungi ' (1797) among many other works.